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@@ -140,16 +140,50 @@ const struct digital_pin_bitband_and_config_table_struct digital_pin_to_info_PGM |
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#endif |
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static void dummy_isr() {}; |
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typedef void (*voidFuncPtr)(void); |
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volatile static voidFuncPtr intFunc[CORE_NUM_DIGITAL]; |
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#if defined(KINETISK) |
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static void porta_interrupt(void); |
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static void portb_interrupt(void); |
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static void portc_interrupt(void); |
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static void portd_interrupt(void); |
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static void porte_interrupt(void); |
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#ifdef NO_PORT_ISR_FASTRUN |
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static void port_A_isr(void); |
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static void port_B_isr(void); |
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static void port_C_isr(void); |
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static void port_D_isr(void); |
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static void port_E_isr(void); |
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#else |
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static void port_A_isr(void) __attribute__ ((section(".fastrun"), noinline, noclone )); |
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static void port_B_isr(void) __attribute__ ((section(".fastrun"), noinline, noclone )); |
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static void port_C_isr(void) __attribute__ ((section(".fastrun"), noinline, noclone )); |
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static void port_D_isr(void) __attribute__ ((section(".fastrun"), noinline, noclone )); |
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static void port_E_isr(void) __attribute__ ((section(".fastrun"), noinline, noclone )); |
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#endif |
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voidFuncPtr isr_table_portA[CORE_MAX_PIN_PORTA+1] = { [0 ... CORE_MAX_PIN_PORTA] = dummy_isr }; |
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voidFuncPtr isr_table_portB[CORE_MAX_PIN_PORTB+1] = { [0 ... CORE_MAX_PIN_PORTB] = dummy_isr }; |
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voidFuncPtr isr_table_portC[CORE_MAX_PIN_PORTC+1] = { [0 ... CORE_MAX_PIN_PORTC] = dummy_isr }; |
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voidFuncPtr isr_table_portD[CORE_MAX_PIN_PORTD+1] = { [0 ... CORE_MAX_PIN_PORTD] = dummy_isr }; |
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voidFuncPtr isr_table_portE[CORE_MAX_PIN_PORTE+1] = { [0 ... CORE_MAX_PIN_PORTE] = dummy_isr }; |
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// The Pin Config Register is used to look up the correct interrupt table |
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// for the corresponding port. |
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inline voidFuncPtr* getIsrTable(volatile uint32_t *config) { |
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voidFuncPtr* isr_table = NULL; |
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if(&PORTA_PCR0 <= config && config <= &PORTA_PCR31) isr_table = isr_table_portA; |
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else if(&PORTB_PCR0 <= config && config <= &PORTB_PCR31) isr_table = isr_table_portB; |
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else if(&PORTC_PCR0 <= config && config <= &PORTC_PCR31) isr_table = isr_table_portC; |
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else if(&PORTD_PCR0 <= config && config <= &PORTD_PCR31) isr_table = isr_table_portD; |
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else if(&PORTE_PCR0 <= config && config <= &PORTE_PCR31) isr_table = isr_table_portE; |
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return isr_table; |
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} |
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inline uint32_t getPinIndex(volatile uint32_t *config) { |
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uintptr_t v = (uintptr_t) config; |
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// There are 32 pin config registers for each port, each port starting at a round address. |
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// They are spaced 4 bytes apart. |
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return (v % 128) / 4; |
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} |
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#elif defined(KINETISL) |
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volatile static voidFuncPtr intFunc[CORE_NUM_DIGITAL] = { [0 ... CORE_NUM_DIGITAL-1] = dummy_isr }; |
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static void porta_interrupt(void); |
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static void portcd_interrupt(void); |
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#endif |
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@@ -177,15 +211,25 @@ void attachInterrupt(uint8_t pin, void (*function)(void), int mode) |
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config = portConfigRegister(pin); |
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#if defined(KINETISK) |
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attachInterruptVector(IRQ_PORTA, porta_interrupt); |
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attachInterruptVector(IRQ_PORTB, portb_interrupt); |
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attachInterruptVector(IRQ_PORTC, portc_interrupt); |
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attachInterruptVector(IRQ_PORTD, portd_interrupt); |
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attachInterruptVector(IRQ_PORTE, porte_interrupt); |
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attachInterruptVector(IRQ_PORTA, port_A_isr); |
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attachInterruptVector(IRQ_PORTB, port_B_isr); |
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attachInterruptVector(IRQ_PORTC, port_C_isr); |
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attachInterruptVector(IRQ_PORTD, port_D_isr); |
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attachInterruptVector(IRQ_PORTE, port_E_isr); |
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voidFuncPtr* isr_table = getIsrTable(config); |
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if(!isr_table) return; |
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uint32_t pin_index = getPinIndex(config); |
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__disable_irq(); |
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cfg = *config; |
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cfg &= ~0x000F0000; // disable any previous interrupt |
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*config = cfg; |
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isr_table[pin_index] = function; // set the function pointer |
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cfg |= mask; |
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*config = cfg; // enable the new interrupt |
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__enable_irq(); |
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#elif defined(KINETISL) |
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attachInterruptVector(IRQ_PORTA, porta_interrupt); |
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attachInterruptVector(IRQ_PORTCD, portcd_interrupt); |
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#endif |
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__disable_irq(); |
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cfg = *config; |
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cfg &= ~0x000F0000; // disable any previous interrupt |
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@@ -194,6 +238,7 @@ void attachInterrupt(uint8_t pin, void (*function)(void), int mode) |
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cfg |= mask; |
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*config = cfg; // enable the new interrupt |
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__enable_irq(); |
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#endif |
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} |
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void detachInterrupt(uint8_t pin) |
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@@ -201,209 +246,87 @@ void detachInterrupt(uint8_t pin) |
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volatile uint32_t *config; |
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config = portConfigRegister(pin); |
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#if defined(KINETISK) |
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voidFuncPtr* isr_table = getIsrTable(config); |
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if(!isr_table) return; |
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uint32_t pin_index = getPinIndex(config); |
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__disable_irq(); |
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*config = ((*config & ~0x000F0000) | 0x01000000); |
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intFunc[pin] = NULL; |
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isr_table[pin_index] = dummy_isr; |
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__enable_irq(); |
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#elif defined(KINETISL) |
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__disable_irq(); |
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*config = ((*config & ~0x000F0000) | 0x01000000); |
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intFunc[pin] = dummy_isr; |
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__enable_irq(); |
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#endif |
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} |
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#if defined(__MK20DX128__) || defined(__MK20DX256__) |
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static void porta_interrupt(void) |
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{ |
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uint32_t isfr = PORTA_ISFR; |
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PORTA_ISFR = isfr; |
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if ((isfr & CORE_PIN3_BITMASK) && intFunc[3]) intFunc[3](); |
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if ((isfr & CORE_PIN4_BITMASK) && intFunc[4]) intFunc[4](); |
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if ((isfr & CORE_PIN24_BITMASK) && intFunc[24]) intFunc[24](); |
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if ((isfr & CORE_PIN33_BITMASK) && intFunc[33]) intFunc[33](); |
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} |
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static void portb_interrupt(void) |
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{ |
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uint32_t isfr = PORTB_ISFR; |
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PORTB_ISFR = isfr; |
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if ((isfr & CORE_PIN0_BITMASK) && intFunc[0]) intFunc[0](); |
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if ((isfr & CORE_PIN1_BITMASK) && intFunc[1]) intFunc[1](); |
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if ((isfr & CORE_PIN16_BITMASK) && intFunc[16]) intFunc[16](); |
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if ((isfr & CORE_PIN17_BITMASK) && intFunc[17]) intFunc[17](); |
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if ((isfr & CORE_PIN18_BITMASK) && intFunc[18]) intFunc[18](); |
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if ((isfr & CORE_PIN19_BITMASK) && intFunc[19]) intFunc[19](); |
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if ((isfr & CORE_PIN25_BITMASK) && intFunc[25]) intFunc[25](); |
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if ((isfr & CORE_PIN32_BITMASK) && intFunc[32]) intFunc[32](); |
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} |
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static void portc_interrupt(void) |
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{ |
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// TODO: these are inefficent. Use CLZ somehow.... |
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uint32_t isfr = PORTC_ISFR; |
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PORTC_ISFR = isfr; |
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if ((isfr & CORE_PIN9_BITMASK) && intFunc[9]) intFunc[9](); |
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if ((isfr & CORE_PIN10_BITMASK) && intFunc[10]) intFunc[10](); |
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if ((isfr & CORE_PIN11_BITMASK) && intFunc[11]) intFunc[11](); |
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if ((isfr & CORE_PIN12_BITMASK) && intFunc[12]) intFunc[12](); |
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if ((isfr & CORE_PIN13_BITMASK) && intFunc[13]) intFunc[13](); |
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if ((isfr & CORE_PIN15_BITMASK) && intFunc[15]) intFunc[15](); |
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if ((isfr & CORE_PIN22_BITMASK) && intFunc[22]) intFunc[22](); |
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if ((isfr & CORE_PIN23_BITMASK) && intFunc[23]) intFunc[23](); |
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if ((isfr & CORE_PIN27_BITMASK) && intFunc[27]) intFunc[27](); |
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if ((isfr & CORE_PIN28_BITMASK) && intFunc[28]) intFunc[28](); |
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if ((isfr & CORE_PIN29_BITMASK) && intFunc[29]) intFunc[29](); |
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if ((isfr & CORE_PIN30_BITMASK) && intFunc[30]) intFunc[30](); |
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} |
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typedef void (*voidFuncPtr)(void); |
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static void portd_interrupt(void) |
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{ |
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uint32_t isfr = PORTD_ISFR; |
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PORTD_ISFR = isfr; |
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if ((isfr & CORE_PIN2_BITMASK) && intFunc[2]) intFunc[2](); |
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if ((isfr & CORE_PIN5_BITMASK) && intFunc[5]) intFunc[5](); |
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if ((isfr & CORE_PIN6_BITMASK) && intFunc[6]) intFunc[6](); |
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if ((isfr & CORE_PIN7_BITMASK) && intFunc[7]) intFunc[7](); |
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if ((isfr & CORE_PIN8_BITMASK) && intFunc[8]) intFunc[8](); |
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if ((isfr & CORE_PIN14_BITMASK) && intFunc[14]) intFunc[14](); |
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if ((isfr & CORE_PIN20_BITMASK) && intFunc[20]) intFunc[20](); |
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if ((isfr & CORE_PIN21_BITMASK) && intFunc[21]) intFunc[21](); |
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} |
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// Using CTZ instead of CLZ is faster, since it allows more efficient bit |
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// clearing and fast indexing into the pin ISR table. |
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#define PORT_ISR_FUNCTION_CLZ(port_name) \ |
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static void port_ ## port_name ## _isr(void) { \ |
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uint32_t isfr = PORT ## port_name ##_ISFR; \ |
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PORT ## port_name ##_ISFR = isfr; \ |
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voidFuncPtr* isr_table = isr_table_port ## port_name; \ |
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uint32_t bit_nr; \ |
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while(isfr) { \ |
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bit_nr = __builtin_ctz(isfr); \ |
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isr_table[bit_nr](); \ |
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isfr = isfr & (isfr-1); \ |
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if(!isfr) return; \ |
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} \ |
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} |
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// END PORT_ISR_FUNCTION_CLZ |
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static void porte_interrupt(void) |
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{ |
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uint32_t isfr = PORTE_ISFR; |
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PORTE_ISFR = isfr; |
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if ((isfr & CORE_PIN26_BITMASK) && intFunc[26]) intFunc[26](); |
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if ((isfr & CORE_PIN31_BITMASK) && intFunc[31]) intFunc[31](); |
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} |
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#if defined(KINETISK) |
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PORT_ISR_FUNCTION_CLZ(A) |
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PORT_ISR_FUNCTION_CLZ(B) |
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PORT_ISR_FUNCTION_CLZ(C) |
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PORT_ISR_FUNCTION_CLZ(D) |
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PORT_ISR_FUNCTION_CLZ(E) |
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#elif defined(KINETISL) |
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// Kinetis L (Teensy LC) is based on Cortex M0 and doesn't have hardware |
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// support for CLZ. |
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#elif defined(__MKL26Z64__) |
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#define DISPATCH_PIN_ISR(pin_nr) { voidFuncPtr pin_isr = intFunc[pin_nr]; \ |
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if(isfr & CORE_PIN ## pin_nr ## _BITMASK) pin_isr(); } |
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static void porta_interrupt(void) |
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{ |
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uint32_t isfr = PORTA_ISFR; |
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PORTA_ISFR = isfr; |
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if ((isfr & CORE_PIN3_BITMASK) && intFunc[3]) intFunc[3](); |
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if ((isfr & CORE_PIN4_BITMASK) && intFunc[4]) intFunc[4](); |
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DISPATCH_PIN_ISR(3); |
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DISPATCH_PIN_ISR(4); |
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} |
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static void portcd_interrupt(void) |
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{ |
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uint32_t isfr = PORTC_ISFR; |
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PORTC_ISFR = isfr; |
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if ((isfr & CORE_PIN9_BITMASK) && intFunc[9]) intFunc[9](); |
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if ((isfr & CORE_PIN10_BITMASK) && intFunc[10]) intFunc[10](); |
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if ((isfr & CORE_PIN11_BITMASK) && intFunc[11]) intFunc[11](); |
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if ((isfr & CORE_PIN12_BITMASK) && intFunc[12]) intFunc[12](); |
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if ((isfr & CORE_PIN13_BITMASK) && intFunc[13]) intFunc[13](); |
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if ((isfr & CORE_PIN15_BITMASK) && intFunc[15]) intFunc[15](); |
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if ((isfr & CORE_PIN22_BITMASK) && intFunc[22]) intFunc[22](); |
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if ((isfr & CORE_PIN23_BITMASK) && intFunc[23]) intFunc[23](); |
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DISPATCH_PIN_ISR(9); |
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DISPATCH_PIN_ISR(10); |
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DISPATCH_PIN_ISR(11); |
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DISPATCH_PIN_ISR(12); |
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DISPATCH_PIN_ISR(13); |
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DISPATCH_PIN_ISR(15); |
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DISPATCH_PIN_ISR(22); |
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DISPATCH_PIN_ISR(23); |
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isfr = PORTD_ISFR; |
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PORTD_ISFR = isfr; |
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if ((isfr & CORE_PIN2_BITMASK) && intFunc[2]) intFunc[2](); |
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if ((isfr & CORE_PIN5_BITMASK) && intFunc[5]) intFunc[5](); |
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if ((isfr & CORE_PIN6_BITMASK) && intFunc[6]) intFunc[6](); |
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if ((isfr & CORE_PIN7_BITMASK) && intFunc[7]) intFunc[7](); |
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if ((isfr & CORE_PIN8_BITMASK) && intFunc[8]) intFunc[8](); |
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if ((isfr & CORE_PIN14_BITMASK) && intFunc[14]) intFunc[14](); |
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if ((isfr & CORE_PIN20_BITMASK) && intFunc[20]) intFunc[20](); |
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if ((isfr & CORE_PIN21_BITMASK) && intFunc[21]) intFunc[21](); |
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} |
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#elif defined(__MK64FX512__) || defined(__MK66FX1M0__) |
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static void porta_interrupt(void) |
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{ |
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uint32_t isfr = PORTA_ISFR; |
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PORTA_ISFR = isfr; |
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if ((isfr & CORE_PIN3_BITMASK) && intFunc[3]) intFunc[3](); |
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if ((isfr & CORE_PIN4_BITMASK) && intFunc[4]) intFunc[4](); |
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if ((isfr & CORE_PIN25_BITMASK) && intFunc[25]) intFunc[25](); |
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if ((isfr & CORE_PIN26_BITMASK) && intFunc[26]) intFunc[26](); |
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if ((isfr & CORE_PIN27_BITMASK) && intFunc[27]) intFunc[27](); |
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if ((isfr & CORE_PIN28_BITMASK) && intFunc[28]) intFunc[28](); |
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if ((isfr & CORE_PIN39_BITMASK) && intFunc[39]) intFunc[39](); |
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if ((isfr & CORE_PIN40_BITMASK) && intFunc[40]) intFunc[40](); |
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if ((isfr & CORE_PIN41_BITMASK) && intFunc[41]) intFunc[41](); |
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if ((isfr & CORE_PIN42_BITMASK) && intFunc[42]) intFunc[42](); |
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} |
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static void portb_interrupt(void) |
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{ |
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uint32_t isfr = PORTB_ISFR; |
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PORTB_ISFR = isfr; |
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if ((isfr & CORE_PIN0_BITMASK) && intFunc[0]) intFunc[0](); |
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if ((isfr & CORE_PIN1_BITMASK) && intFunc[1]) intFunc[1](); |
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if ((isfr & CORE_PIN16_BITMASK) && intFunc[16]) intFunc[16](); |
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if ((isfr & CORE_PIN17_BITMASK) && intFunc[17]) intFunc[17](); |
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if ((isfr & CORE_PIN18_BITMASK) && intFunc[18]) intFunc[18](); |
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if ((isfr & CORE_PIN19_BITMASK) && intFunc[19]) intFunc[19](); |
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if ((isfr & CORE_PIN29_BITMASK) && intFunc[29]) intFunc[29](); |
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if ((isfr & CORE_PIN30_BITMASK) && intFunc[30]) intFunc[30](); |
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if ((isfr & CORE_PIN31_BITMASK) && intFunc[31]) intFunc[31](); |
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if ((isfr & CORE_PIN32_BITMASK) && intFunc[32]) intFunc[32](); |
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if ((isfr & CORE_PIN43_BITMASK) && intFunc[43]) intFunc[43](); |
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if ((isfr & CORE_PIN44_BITMASK) && intFunc[44]) intFunc[44](); |
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if ((isfr & CORE_PIN45_BITMASK) && intFunc[45]) intFunc[45](); |
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if ((isfr & CORE_PIN46_BITMASK) && intFunc[46]) intFunc[46](); |
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if ((isfr & CORE_PIN49_BITMASK) && intFunc[49]) intFunc[49](); |
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if ((isfr & CORE_PIN50_BITMASK) && intFunc[50]) intFunc[50](); |
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} |
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static void portc_interrupt(void) |
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{ |
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// TODO: these are inefficent. Use CLZ somehow.... |
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uint32_t isfr = PORTC_ISFR; |
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PORTC_ISFR = isfr; |
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if ((isfr & CORE_PIN9_BITMASK) && intFunc[9]) intFunc[9](); |
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if ((isfr & CORE_PIN10_BITMASK) && intFunc[10]) intFunc[10](); |
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if ((isfr & CORE_PIN11_BITMASK) && intFunc[11]) intFunc[11](); |
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if ((isfr & CORE_PIN12_BITMASK) && intFunc[12]) intFunc[12](); |
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if ((isfr & CORE_PIN13_BITMASK) && intFunc[13]) intFunc[13](); |
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if ((isfr & CORE_PIN15_BITMASK) && intFunc[15]) intFunc[15](); |
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if ((isfr & CORE_PIN22_BITMASK) && intFunc[22]) intFunc[22](); |
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if ((isfr & CORE_PIN23_BITMASK) && intFunc[23]) intFunc[23](); |
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if ((isfr & CORE_PIN35_BITMASK) && intFunc[35]) intFunc[35](); |
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if ((isfr & CORE_PIN36_BITMASK) && intFunc[36]) intFunc[36](); |
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if ((isfr & CORE_PIN37_BITMASK) && intFunc[37]) intFunc[37](); |
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if ((isfr & CORE_PIN38_BITMASK) && intFunc[38]) intFunc[38](); |
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} |
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static void portd_interrupt(void) |
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{ |
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uint32_t isfr = PORTD_ISFR; |
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PORTD_ISFR = isfr; |
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if ((isfr & CORE_PIN2_BITMASK) && intFunc[2]) intFunc[2](); |
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if ((isfr & CORE_PIN5_BITMASK) && intFunc[5]) intFunc[5](); |
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if ((isfr & CORE_PIN6_BITMASK) && intFunc[6]) intFunc[6](); |
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if ((isfr & CORE_PIN7_BITMASK) && intFunc[7]) intFunc[7](); |
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if ((isfr & CORE_PIN8_BITMASK) && intFunc[8]) intFunc[8](); |
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if ((isfr & CORE_PIN14_BITMASK) && intFunc[14]) intFunc[14](); |
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if ((isfr & CORE_PIN20_BITMASK) && intFunc[20]) intFunc[20](); |
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if ((isfr & CORE_PIN21_BITMASK) && intFunc[21]) intFunc[21](); |
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if ((isfr & CORE_PIN47_BITMASK) && intFunc[47]) intFunc[47](); |
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if ((isfr & CORE_PIN48_BITMASK) && intFunc[48]) intFunc[48](); |
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if ((isfr & CORE_PIN51_BITMASK) && intFunc[51]) intFunc[51](); |
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if ((isfr & CORE_PIN52_BITMASK) && intFunc[52]) intFunc[52](); |
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if ((isfr & CORE_PIN53_BITMASK) && intFunc[53]) intFunc[53](); |
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if ((isfr & CORE_PIN54_BITMASK) && intFunc[54]) intFunc[54](); |
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if ((isfr & CORE_PIN55_BITMASK) && intFunc[55]) intFunc[55](); |
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} |
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static void porte_interrupt(void) |
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{ |
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uint32_t isfr = PORTE_ISFR; |
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PORTE_ISFR = isfr; |
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if ((isfr & CORE_PIN24_BITMASK) && intFunc[24]) intFunc[24](); |
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if ((isfr & CORE_PIN33_BITMASK) && intFunc[33]) intFunc[33](); |
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if ((isfr & CORE_PIN34_BITMASK) && intFunc[34]) intFunc[34](); |
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if ((isfr & CORE_PIN56_BITMASK) && intFunc[56]) intFunc[56](); |
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if ((isfr & CORE_PIN57_BITMASK) && intFunc[57]) intFunc[57](); |
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if ((isfr & CORE_PIN58_BITMASK) && intFunc[58]) intFunc[58](); |
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if ((isfr & CORE_PIN59_BITMASK) && intFunc[59]) intFunc[59](); |
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if ((isfr & CORE_PIN60_BITMASK) && intFunc[60]) intFunc[60](); |
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if ((isfr & CORE_PIN61_BITMASK) && intFunc[61]) intFunc[61](); |
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if ((isfr & CORE_PIN62_BITMASK) && intFunc[62]) intFunc[62](); |
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if ((isfr & CORE_PIN63_BITMASK) && intFunc[63]) intFunc[63](); |
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DISPATCH_PIN_ISR(2); |
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DISPATCH_PIN_ISR(5); |
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DISPATCH_PIN_ISR(6); |
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DISPATCH_PIN_ISR(7); |
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DISPATCH_PIN_ISR(8); |
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DISPATCH_PIN_ISR(14); |
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DISPATCH_PIN_ISR(20); |
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DISPATCH_PIN_ISR(21); |
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} |
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#undef DISPATCH_PIN_ISR |
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#endif |
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